A study on a mathematical model of gas in accumulator using van der Waals equation

Shuto Miyashita
Department of Mechanical and Control Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Tokyo, Japan

Shuce Zhang
Department of Systems Integration, Graduate School of Engineering, Yokohama National University, Yokohama City, Japan

Kazushi Sanada
Faculty of Engineering, Yokohama National University, Yokohama City, Japan

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp17144237

Ingår i: Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden

Linköping Electronic Conference Proceedings 144:23, s. 237-242

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Publicerad: 2017-12-20

ISBN: 978-91-7685-369-6

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


As mathematical models of hydraulic accumulator, thermodynamics, heat transfer, and gas models are briefly described, including the isothermal and the adiabatic equations of the van der Waals equation. Measurement of gas behavior using a bladder type accumulator and a piston type accumulator was carried out. Measured data of a discharge test of the bladder accumulator and a charge test of the piston type accumulator were used to validate the models.


Accumulator, Gas model, Van der Waals equation, Oil-hydraulics


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